UVCS MISSION LOG ---------------- Date: 14 July 2009 ----- Last revision: 21 July 2009 (MU) -------------- File Name: 2009.07.19.a.log ---------- Compiled by: M. Uzzo, R. Wu ------------ UVCS Activity: Flush and Abort North Coronal Hole Study for -------------- 18 - 19 July 2009 Place UVCS in Modified SAFE Configuration for Spacecraft Activities 19 July 2009 Recover UVCS from Modified Safe Configuration Load and Start OVI Detector Rate Diagnostic for 19 July 2009 Load North Coronal Hole Study for 19 - 20 July 2009 SOHO Activity: Last Update: 17 July 2009 14:20 GHW -------------- Standard Disclaimer: All times are in UT and are estimates. Total Fuel Usage: 0.324 kg SORR - No formal SORR, 14:00 Friday after meetings Sunday 19 July 2009 ------------------- D65 07:50-19:05 D27 18:55-22:50 Tero here 12:00-20:00 (7am-3pm) UVCS safes via NRT at ~12:15 UVCS removed from ESR (OCD) and offpoint flags prior to maneuver SWAN safed by FOT: run n_fl_llockin, go to ESR limit set CELIAS s_tof - safed via CEL_ESR_SAFE.DEL MDI loop opened by FOT with warning at ~13:30 Experiment offpoint flag disabled for rest of instruments Station-Keeping: SK (~44 minutes) at ~14:00 Burns should be complete by ~14:45 Experiment offpoint flags enabled for UVCS, LASCO, MDI Experiement ESR flags enabled for UVCS (OCD) MDI loop closed by FOT after asking permission at ~15:30-16:00 UVCS recovery via NRT after maneuvers have been completed LASCO recovery via NRT after maneuvers have been completed SWAN recovered by FOT (2 hours after last burn): go to nominal limit set, run n_fl_llockout, send n_fl_manrec CELIAS recovered by FOT (6 hours after last burn): CEL12_RECOVR.DEL Monday 20 July 2009 ------------------- D63 09:50-16:15 *D/L Only* D27 16:05-20:20 D15 20:10-01:05 *D/L Only* Gavin and Tero here 13:00-21:00 (9am-5pm) SVM Reserve Time on D27 - 16:05-17:05 LASCO closes doors for CDS recovery at ~17:05 CDS recovery (use TSTOL c_fl_opendoors from Maneuver End Script) at ~17:20 CDS load to resume observations LASCO opens doors to resume observations at ~17:45 LASCO load to resume observations EOF Staff: M. P. Miralles / J. Kohl: Lead Scientist ---------- M. Uzzo: Commander, Planner R. Wu Command file: 09.07.16.12:40:00.cmd.log 09.07.19.11:54:56.cmd.log Activity: --------- 1) Place UVCS into Modified Hard Safe Configuration Sequence: Manual SCI_SPEC: UVCS is recovered placed into a modified Hard Safe Configuration. Detector High Voltage ramped down and turned off UVCS Aperture Door is closed 708 steps at this time. Internal SPA1 heater set to 50% duty cycle (128 Engineering Units) and Mirror / Occulter Heaters set to 100% duty cycle (64 EU). Note: Safing times (below) are approximate. OBS_PROG: SCI_OBJ: OBJ: CMP_NAME: CMP_NUM: Duration: start: 2009.07.19.12:24 end: 2009.07.19.15:54 ONUMs = 25635 Instrument configuration: - Pointing: Sun center - Spacecraft Roll: 180 Degrees - Roll: 352.09 Degrees (50331) - Mirror/Occulter: 2.1 Ro 1.5 mm overocculting - LYA Slit: 100 um - OVI Slit: 50 um - LYA GRTPOS: 100000 - OVI GRTPOS: 232100 - LYA HIGH VOLTAGE RAMPED DOWN AND POWERED OFF - OVI HIGH VOLTAGE RAMPED DOWN AND POWERED OFF - VLD HIGH VOLTAGE RAMPED DOWN AND POWERED OFF - LYA DETECTOR POWERED OFF - OVI DETECTOR POWERED ON - VLD DETECTOR POWERED OFF - OVI mask: OVI_Hole_237 in slot 2 Fits Files: 2) Recover UVCS from Modified Hard Safe Configuration Sequence: Manual SCI_SPEC: UVCS is recovered from a modified Hard Safe Configuration to resume science observations. Note: Recovery times (below) are approximate. OBS_PROG: SCI_OBJ: OBJ: CMP_NAME: CMP_NUM: Duration: start: 2009.07.19.15:54 end: 2009.07.19.16:13 ONUMs = 25635 Instrument configuration: - Pointing: Sun center - Spacecraft Roll: 180 Degrees - Roll: 352.09 Degrees (50331) - Mirror/Occulter: 2.1 Ro 1.5 mm overocculting - LYA Slit: 100 um - OVI Slit: 50 um - LYA GRTPOS: 100000 - OVI GRTPOS: 232100 - LYA HIGH VOLTAGE RAMPED DOWN AND POWERED OFF - OVI HIGH VOLTAGE RAMPED DOWN AND POWERED OFF - VLD HIGH VOLTAGE RAMPED DOWN AND POWERED OFF - LYA DETECTOR POWERED OFF - OVI DETECTOR POWERED ON - VLD DETECTOR POWERED OFF - OVI mask: OVI_Hole_237 in slot 2 Fits Files: 3) OVI Detector Dark Rate Diagnostic Sequence: OVI_dark_chk.tcl SCI_SPEC: Determine Dark count rate for OVI detector. Instrument rolled to coronal hole, 5.0 Ro with 0.8 mm exposed mirror. Script engages OVI filter and then disengages it at end. OBS_PROG: Calibration SCI_OBJ: Calibration OBJ: Coronal Hole CMP_NAME: CMP_NUM: Duration: start: 2009.07.19.16:16 end: 2009.07.19.17:17 ONUMs = 25637 (12 exps) Instrument configuration: - Pointing: Sun center - Spacecraft Roll: 180 Degrees - Roll: 0 Degrees (51551) - Mirror/Occulter: 5.0 Ro 1.5 mm overocculting - LYA Slit: 100 um - OVI Slit: 50 um - LYA GRTPOS: 100000 - OVI GRTPOS: 210000 - OVI Filter Engaged - OVI MCP Voltage: 205 - OVI mask: OVI_chk_1xfull in slot 6 Fits Files: q09.07.19.16:16:12.ovi.dat 4) North Polar Coronal Hole Study Sequence: 09.07_hole.tcl, n = 8, m = 2, p = 0, r = 0, e = 0 SCI_SPEC: Characterization of a polar coronal hole. Goal is to measure the properties of a polar coronal hole. In particular we are interested in the coronal conditions (intensities and line widths for HI Ly-alpha and OVI 1032/1037) as a function of height and latitude. We will compare these properties with the ones found in non-polar coronal holes. Roll positions are VL-corrected for PA=0 degrees. OBS_PROG: Primary: Sensitivity Sub Obj: Spatial Coverage SCI_OBJ: Plasma Properties...Proton and Ion Temperatures OBJ: Coronal Hole CMP_NAME: CMP_NUM: Duration: start: 2009.07.19.17:19 end: 2009.07.20.16:45 ONUMs = 25638 (318 exps) 25639 (359 exps) Instrument configuration: - Pointing: Sun center - Spacecraft Roll: 180 Degrees - Roll: 352.09 Degrees (50331) - Mirror/Occulter: 2.1 Ro 1.5 mm overocculting - LYA Slit: 100 um - OVI Slit: 50 um - LYA GRTPOS: 100000 - OVI GRTPOS: 232100 - OVI MCP Voltage: 205 - OVI mask: OVI_Hole_237 in slot 2 Fits Files: q09.07.19.17:19:26.ovi.dat q09.07.20.04:20:46.ovi.dat